The goal of this article is to identify and disseminate several important messages from recent research on formal thought. Reasoning by adolescents, measurement of Piagetian formal reasoning, the importance of additional factors, stages, and working memory are discussed. (MNS)

Reports the results of a study that indicate that junior and senior high school science students are penalized (by receiving lower grades) for not being able to think at the formal operational level. Outlines some methods that may be used to facilitate growth in cognitive development of students. (JR)

This discussion is primarily designed to increase teachers' awareness of Piaget's theory of cognitive development and implications for mathematics in the middle school. It is hoped such awareness will compel instructors to adopt strategies that help pupils gain more from mathematical experiences, by providing impetus for innovation and…

The use of Piaget's Displacement Volume task is shown to be a reasonably good indicator of early formal reasoning. A paper-and-pencil task is also shown effective in measuring the same stage of reasoning. (MN)

Reports the results of a study in which children below the age of eleven were tested on their ability to perform several tasks of class inclusion and a task relating to the conservation of weight. (JR)

Studied was how high school science and mathematics students approach tasks that require correlational reasoning for successful solution. The results show that a significant number of students did not use correlational reasoning. (MP)

This study investigated whether there was a difference in achievement by first graders between their ability to solve open sentences presented in vertical form and in horizontal form. It was recommended that the horizontal form be avoided in grades one and two. (MP)

Discusses the role constructivist learning theory is taking in the change of teaching strategies in the science laboratory. The laboratory moves from a place where knowledge is verified to one where relationships are actively investigated through hands-on, cooperative activities. (MDH)

This study was conducted to determine the cognitive demand made by an eighth-grade science textbook. Reasoning patterns and science concepts were listed and compared. Concrete reasoning was required more often than formal reasoning, but some points of difficulty for students who are not formal reasoners were noted. (MNS)

Presents a study to evaluate the cognitive level of questions in middle school science textbooks. Questions and their location were coded from six randomly selected chapters in eight middle school science textbooks. Results indicated that input level questions were the dominant question type, probably leading to students functioning at lower…

Discussed is the effectiveness of using analogies in chemistry instruction. Students' mathematics anxiety, spatial visualization skill, and proportional reasoning ability were found to be important aptitudes for determining chemistry achievement. The relationship between analogs and algorithms is described. (KR)

Presented is an analysis of published research on students' conceptual development in the life sciences with the intent of providing information on the trends and content of those studies. A list of 128 references is appended. (CW)

Reports a study of 913 Israeli students in grades 7-12 from randomly chosen heterogeneous homeroom classes to investigate students' Piagetian cognitive levels using a video-based test. Results indicate that less than 50 percent of high school students have mastered formal operational reasoning. (MDH)

Reports misconceptions identified in students with respect to the topic of parallel lines and the teaching strategies found to be useful in challenging those misconceptions. (11 references) (MDH)